<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>v-once</title>
</head>
<body>
<div id="app">
    <template v-once>
        {{message}}
    </template>

    <div>
        {{message}}
    </div>
</div>
</body>
<script src="../../../lib/vue.js"></script>
<script>

    var app = new Vue({
        el:'#app',
        data:{
            message:'hello'
        }
    })

</script>
</html>